I was really surprised, but babies r us is actually cheaper than Target or Walmart for toddler clothes! Seriously, I popped in there today to get Xander's Legoland Atlanta outfit (going on the 27th), and they had almost everything on clearance, and everything on clearance was an additional 50% FTW.
$8 total for some corduroy jeans with suspenders and a lime green monster themed shirt, both by Heidi Klum. I never shop there, but was pleasantly surprised! (baby pictured was just pulled from the net-- that's the shirt, and the pants).